1391668135017 has 8 divisors (see below), whose sum is σ = 1855567469280. Its totient is φ = 927773778720.

The previous prime is 1391668135003. The next prime is 1391668135111. The reversal of 1391668135017 is 7105318661931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1391668135017 - 2⁴ = 1391668135001 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1391668131017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534267 + ... + 1751792.

It is an arithmetic number, because the mean of its divisors is an integer number (231945933660).

Almost surely, 2^{1391668135017} is an apocalyptic number.

It is an amenable number.

1391668135017 is a deficient number, since it is larger than the sum of its proper divisors (463899334263).

1391668135017 is a wasteful number, since it uses less digits than its factorization.

1391668135017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488983.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 1391668135017 in words is "one trillion, three hundred ninety-one billion, six hundred sixty-eight million, one hundred thirty-five thousand, seventeen".